Note that version 6.2.2 is the immediate successor to version 6.2.0. 6.2.1 was skipped to stay in sync with the tool applications (SpeedTree Modeler and Compiler). In particular, the Compiler and SDK must stay in strong agreeement.
Bug Fixes and Performance
PS3 version of the Plantation forest configuration updated: PS3_Deferred.sfc added, PS3_Forward.sfc synchronized with Xbox360_Forest.sfc, which had been more appropriately tuned for current-gen consoles.
Trees that have LOD disabled now issue warnings during compilation, but they also render correctly in the SDK & reference application. Note that a no-LOD tree renders at full resolution to the horizon, pretty much destroying rendering and culling efficiency.